90368750

素因数分解:

$2^1\times 5^5\times {\mathrm{19}}^1\times {\mathrm{761}}^1$

素因数の和:807

約数の個数: 48

約数和(自身を含む): 178582320

約数和(自身を除く): 88213570

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 125, 190, 250, 475, 625, 761, 950, 1250, 1522, 2375, 3125, 3805, 4750, 6250, 7610, 11875, 14459, 19025, 23750, 28918, 38050, 59375, 72295, 95125, 118750, 144590, 190250, 361475, 475625, 722950, 951250, 1807375, 2378125, 3614750, 4756250, 9036875, 18073750, 45184375, 90368750]

約数ペア:

[(1, 90368750), (2, 45184375), (5, 18073750), (10, 9036875), (19, 4756250), (25, 3614750), (38, 2378125), (50, 1807375), (95, 951250), (125, 722950), (190, 475625), (250, 361475), (475, 190250), (625, 144590), (761, 118750), (950, 95125), (1250, 72295), (1522, 59375), (2375, 38050), (3125, 28918), (3805, 23750), (4750, 19025), (6250, 14459), (7610, 11875)]